Timing chain for Viper 125-200 cc motorcycles and similar (China, Minsk). The timing chain connects the crankshaft and the camshaft and synchronizes the operation of the valves with the movement of the piston.
The chain stretches over time. Signs: noise and rattling in the valve train, timing errors, loss of power, and if it breaks, serious damage is possible. The chain is replaced together with the sprockets, the tensioner and the guides. In the name: chain type 25h, length 100 links (L).
For 125J. Country of origin: China.
